1. HIGH QUALITY MATERIAL: Made of sturdy brass that will not corrode or leak, ensuring long life. Shower hose water flow limiters set: Special overlay, being mounted in tub mixer or shower mixer. 2. SAVE WATER & MONEYThe highest water saving of 70% 4 L / min can save up to 150GBP of water per year, and the high performance of the restrictor can save up to $ 150 per year in water consumption. 3. EASY TO ASSEMBLE Just as tap insert in washstand mixers causes decrease of the liquid flow stream and simultaneously allows the user to enjoy the unchanged and effective cascade of water diffusion. 4. 3 DIFFERENT FLOW RATEThe set contains 3 different flow plugs to meet your requirements: 4, 6 and 9 L/min flow: The green plug reduces the water flow to 4 L / min; the blue plug reduces the water flow to 6 L / min; the yellow plug reduces the water flow to 9 L / min